1. Not having come to an end or been terminated by passage of time
   "elected to fill the senator's unexpired term"; "an unexpired driver's licence"

See also: valid

Antonym: expired

• unbrainwashed
• unbranched
• unbranching
• unbranded
• unbreakable
• unbreakableness
• unbridgeable
• unbridle
• unbridled
• unbroken
• unbrushed
• unbuckle
• unbundle
• unburden
• unburdened
• unburied
• unburned
• unburnished
• unburnt
• unbutton
• unbuttoned
• uncalled-for
• uncamphorated
• uncannily
• uncanny